How To Tig Weld Aluminum Tubing. Well for aluminum you might need as much as 15 amps per thou. Welding aluminum requires a thorough understanding of the tig welding process and also requires a tig torch.
For the 14 6mm lap joint shown in the video the mig joint took 45 secondsthe tig weld took 60 seconds. Learn how to TIG Weld. But 15 amps per thousandths along with a.
Clean your aluminum remove any oxide and file the edges that will be joined Avoid pulling while weldinginstead push at a 10 to 15 degree angle Use multiple pass straight beads to improve the overall appearance of the weld and help to avoid defects Use a heat sink which will absorb extra heat and allow you to weld slower.
I remember reading another article a few years ago about a tuna tower contractor that was using Dynasty 300s with a trigger switch on the torch. I prefer to use a sharp tip on the tungsten and use 15 gold lanthanated electrodes. The trick to a lasting weld on aluminum tubing is all in the technique. Welding aluminum requires a thorough understanding of the tig welding process and also requires a tig torch.